Novel Janus magnetic micro particle synthesis and its applications as a demulsifier for breaking heavy crude oil and water emulsion

Ali, Nisar; Zhang, Baoliang; Zhang, Hepeng; Li, Wei; Zaman, Wajed; Tian, Lei; Zhang, Qiuyu

doi:10.1016/j.fuel.2014.10.026

Cited by 114 publications

(34 citation statements)

References 27 publications

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“…In other words, the siloxane hydrophobes differ considerably from the traditional block organic polymers due to their weak intermolecular attractive forces. Structurally, they are characterized by (Abdel‐Raouf et al, ) SiOSi bond angles that are larger than COC bond angles (Adilbekova et al, ), SiO bond lengths that are longer than COC or CC bonds, (Ali et al, ) a greater freedom of rotation around the SiO bond compared to the CC bond, and (Ali et al, ) freely rotating methyl groups that can orient toward interfaces and also result in “free” volume for the siloxane hydrophobic chains (Eduok et al, ; Liu, ; Somasundaran et al, ). Therefore, all these characteristics give siloxane hydrophobes their comb‐like shape for diffusing easily in the crude oil.…”

Section: Resultsmentioning

confidence: 99%

“…Interfacial tension (γ) versus the logarithm of the demulsifier concentration (log C) using 100 s duration time through the measurements they are characterized by(Abdel-Raouf et al, 2011) Si O Si bond angles that are larger than C O C bond angles(Adilbekova et al, 2015), Si O bond lengths that are longer than C O C or C C bonds,(Ali et al, 2015a) a greater freedom of rotation around the Si O bond compared to the C C bond, and(Ali et al, 2015b…”

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confidence: 99%

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Novel Star Polymeric Nonionic Surfactants as Crude Oil Emulsion Breakers

El-Sharaky

El-Tabey

Mishrif

2019

J Surfact & Detergents

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The principle focus of this work is to address the issues associated with the existence of water in crude oil, especially corrosion, scaling, viscosity, and catalyst suppression problems. This work aims to prepare star polymer nonionic surfactants based on (2Z,2′Z,2″Z)‐4,4′,4″‐((nitrilotris(ethane‐2,1‐diyl))tris(oxy))tris(4‐oxobut‐2‐enoic acid) to be used as demulsifiers. To achieve this aim, maleic anhydride was reacted with triethanolamine followed by esterification with the polyethylene oxide polypropylene oxide copolymer (PPO‐PEO 5000) and silicone polyether (ABIL B 8843). The chemical structure of the prepared compounds was assessed using gel permeation chromatography (GPC), Fourier transform infrared (FT‐IR), and 1H NMR. Demulsifier performance was determined by quantifying surface tension (ST), dynamic interfacial tension and interfacial rheology, partition coefficient (PC), and relative solubility number (RSN). The efficacy of the prepared emulsion breakers on asphaltenic crude oil emulsion was examined using the bottle test. The research results demonstrated that the prepared breaker based on the silicone polymer was more efficient in breaking the asphaltenic crude oil emulsion than a block copolymer and EO/PO‐based copolymers at 1500 ppm and after 120 min.

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Section: Resultsmentioning

confidence: 99%

mentioning

confidence: 99%

Novel Star Polymeric Nonionic Surfactants as Crude Oil Emulsion Breakers

El-Sharaky

El-Tabey

Mishrif

2019

J Surfact & Detergents

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show abstract

“…Similarly, magnetic-based chemical demulsifiers, such as magnetic graphene oxide, Janus magnetic submicron particles, oleic acid-coated magnetite nanoparticles, and alginate, have been proven to have a high demulsification efficiency in the range of 95-99.98% [89,106,107]. Ali et al [108] revealed that the use of a Janus submicron magnetic particle demulsifier at a concentration of 600 ppm and temperature of 60 • C yielded more than a 95% efficiency during demulsification of a water-in-oil emulsion within 2 h of processing. Despite the high demulsification efficiency reported using the above chemical demulsifiers, the process still faces challenges, such as low compatibility and efficiency [28].…”

Section: Chemical Demulsificationmentioning

confidence: 99%

An Overview of Recent Advances in State-of-the-Art Techniques in the Demulsification of Crude Oil Emulsions

et al. 2019

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The processing of crude oil often requires the extraction of a large amount of water. Frequently, crude oil is mixed with water to form water-in-crude oil emulsions as the result of factors such as high shear at the production wellhead and surface-active substances that are naturally present in crude oil. These emulsions are undesirable and require demulsification to remove the dispersed water and associated inorganic salts in order to meet production and transportation specifications. Additionally, the demulsification of these crude oil emulsions mitigates corrosion and catalyst poisoning and invariably maximizes the overall profitability of crude oil production. Recently, there has been growing research interest in developing workable solutions to the difficulties associated with transporting and refining crude oil emulsions and the restrictions on produced water discharge. Therefore, this paper reviews the recent research efforts on state-of-the-art demulsification techniques. First, an overview of crude oil emulsion types, formation, and stability is presented. Then, the parameters and mechanisms of emulsification formation and different demulsification techniques are extensively examined. It is worth noting that the efficiency of each of these techniques is dependent on the operating parameters and their interplay. Moreover, a more effective demulsification process could be attained by leveraging synergistic effects by combining one or more of these techniques. Finally, this literature review then culminates with propositions for future research. Therefore, the findings of this study can help for a better understanding of the formation and mechanisms of the various demulsification methods of crude oil to work on the development of green demulsifiers by different sources.

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“…Poly(lactic-co-glycolic acid) (PLGA) design concept of the JPs. As an example, Zhang et al demo n s t r a t e d t h e f a s t a n d e a s y r e c o v e r y o f poly(methylmethacrylate-acrylic acid-divinylbenzene)/ iron oxide JPs, used as demulsifier for heavy crude oilwater emulsions, by employing an external hand magnet without losing its interfacial activity [74]. Rhee, Kim et al…”

Section: Recovery and Recycling Of Janus Particlesmentioning

confidence: 99%

Janus particles: from concepts to environmentally friendly materials and sustainable applications

2020

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Janus particles represent a unique group of patchy particles combining two or more different physical or chemical functionalities at their opposite sides. Especially, individual Janus particles (JPs) with both chemical and geometrical anisotropy as well as their assembled layers provide considerable advantages over the conventional monofunctional particles or surfactant molecules offering (a) a high surface-to-volume ratio; (b) high interfacial activity; (c) target controlling and manipulation of their interfacial activity by external signals such as temperature, light, pH, or ionic strength and achieving switching between stable emulsions and macro-phase separation; (d) recovery and recycling; (e) controlling the mass transport across the interface between the two phases; and finally (f) tunable several functionalities in one particle allowing their use either as carrier materials for immobilized catalytically active substances or, alternatively, their site-selective attachment to substrates keeping another functionality active for further reactions. All these advantages of JPs make them exclusive materials for application in (bio-)catalysis and (bio-)sensing. Considering "green chemistry" aspects covering biogenic materials based on either natural or fully synthetic biocompatible and biodegradable polymers for the design of JPs may solve the problem of toxicity of some existing materials and open new paths for the development of more environmentally friendly and sustainable materials in the very near future. Considering the number of contributions published each year on the topic of Janus particles in general, the number of contributions regarding their environmentally friendly and sustainable applications is by far smaller. This certainly pinpoints an important challenge and is addressed in this review article. The first part of the review focuses on the synthesis of sustainable biogenic or biocompatible Janus particles, as well as strategies for their recovery, recycling, and reusability. The second part addresses recent advances in applications of biogenic/biocompatible and non-biocompatible JPs in environmental and biotechnological fields such as sensing of hazardous pollutants, water decontamination, and hydrogen production. Finally, we provide implications for the rational design of environmentally friendly and sustainable materials based on Janus particles.

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Novel Janus magnetic micro particle synthesis and its applications as a demulsifier for breaking heavy crude oil and water emulsion

Cited by 114 publications

References 27 publications

Novel Star Polymeric Nonionic Surfactants as Crude Oil Emulsion Breakers

Novel Star Polymeric Nonionic Surfactants as Crude Oil Emulsion Breakers

An Overview of Recent Advances in State-of-the-Art Techniques in the Demulsification of Crude Oil Emulsions

Janus particles: from concepts to environmentally friendly materials and sustainable applications

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